In this episode, Mr. Krabs creates a "promotion" to the Krusty Krab by selling Regular, Large and Viking Sized Drinks (which really are all the same size) in a bid to save the restaurant money, yet at the same time, to fool the customers into paying more money for the same size drink. He also states that whoever purchases a Viking Sized cup tries on a cardboard helmet (that he found in his attic) which is also a gimmick to obtain money. This gets SpongeBob interested in Vikings. Squidward then teaches him about Vikings, though nothing he said was true. Then SpongeBob sends a letter to the Vikings, meanwhile, at the post office, a garbageman (who is a Viking) notices it and delivers the letter to the Viking Chief. He then sends his men to the Krusty Krab to teach them about the Vikings (which is redecorating, appropriating, and liberating) and they kidnap SpongeBob and Squidward. Then, the they introduce themselves as Gordan and a bunch of Olafs. SpongeBob then asks what they do for fun (which is just throwing a shield), then one says they like to sing songs. The Vikings make SpongeBob the head chef, and Squidward the bathroom attendant. Soon afterward, Squidward complains about the poor lifestyle, which causes him to be tied to a catapult. Soon, the Vikings discover that they have hit a rock and that their boat will leak, which gives SpongeBob an idea. He then plugs up the boat with his porous appearance, and saves the Vikings.
( ‣ ) Associated production music
( • ) Original music
( ◦ ) SpongeBob music
•SpongeBob Theme - Jeremy Wakefield, Sage Guyton [title card] •Botany Bay - Michael Bolger, Nicolas Carr [opening] ‣ ? [new beverage cups] • ? - Michael Bolger, Nicolas Carr ["These are all the same size."] ‣ ? [cardboard Viking helmet] • ? - Michael Bolger, Nicolas Carr ["Don't you know when you're being ignored?"] •Vibe Sting - Nicolas Carr [SpongeBob asks what a Viking is] • ? - Michael Bolger, Nicolas Carr ["The Vikings lived a long time ago."] ‣The Quest (a) - Robert (Bob) John Foster [Squidward teaching SpongeBob about the Vikings] •Comic Walk - Nicolas Carr ["Of course they do."] ‣Hawaiian Happiness - Jon Jelmer [SpongeBob writing a letter to the Vikings] ‣Hurry - Ludo Philipp [at the post office] ‣Roman Empire - Larry Hochman [Viking garbageman] ‣Celtic Lands - David Farnon [at the Viking lair] ‣Big Bad Giant - Paddy Kingsland [garbageman enters] ‣Celtic Lands - David Farnon ["Your Majesty, look! A letter!"] ‣Gates of Troy - David Farnon [Viking ship arrives at Krusty Krab] ‣Portents of War (a) - Robert (Bob) John Foster [SpongeBob and Squidward kidnapped] • ? - Nicolas Carr ["Squidward?"] ‣ ? [shot of Viking ship] ‣Big Bad Giant - Paddy Kingsland [Vikings introduce themselves] • ? - Nicolas Carr ["Like what?"] ‣ ? [shield toss] ‣March to Conquest (a) - Robin Jeffrey, Roddy Skeaping ["No, we don't!"] ‣Big Bad Giant - Paddy Kingsland ["What is it that you two know how to do?"] • ? - Sage Guyton, Jeremy Wakefield [Squidward saying all the things he can do] ‣Tympup A - Sammy Burdson, John Charles Fiddy [Squidward assigned to bathroom attendant] • ? - Nicolas Carr [Squidward assigned to bathroom attendant] ‣Comic Walk - Sidney Torch ["Hold it right there, whiskers!"] ‣March to Conquest (a) - Robin Jeffrey, Roddy Skeaping [Squidward about to be catapulted off the ship] ‣Entry of the Heroes A - Gregor F. Narholz ["You mean to question the will of the tribe?"] ‣Rescue - Cecil Milner [ship hits an iceberg] ‣ ? [security blanket] ‣Attack - Tony Hymas [SpongeBob saves the ship] • ? - Sage Guyton, Jeremy Wakefield [ending]
Many longtime fans of SpongeBob have called this the worst episode of the series, citing a bad plot and not many good jokes. Ironically, this episode was nominated for a primetime Emmy.
When Squidward talks about the helmet, there is cobwebs but later there is no cobwebs.
During the part where SpongeBob says, "I'll let you know if I think of anything.", his nose looks like Squidward's. Then when the camera switches, then switches back to SpongeBob, his nose is normal again.